1994; F150; 4.9; automatic; 124k miles. My truck has suddenly been giving me the 'lights left on' buzzer when I turn it off and open the door although the lights are not on, the key is not in the ignition nor is anything else that might normally trigger a buzzer. Doesn't do it every time. I've poked that button in the door jamb to see if it might have somehow gotten stuck and the lights are off so it's a mystery as to why the buzzer comes on. Just went out and turned the lights on and opened the door and no buzzer. Anyone have a fix for this? Thanks.